connection closed by foreign host 썸네일형 리스트형 ping, telnet으로 통신(포트) 상태 확인 ping, telnet으로 통신(포트) 상태 확인 ping test(ICMP) $ ping -c 3 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_seq=1 ttl=105 time=26.5 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=105 time=26.5 ms 64 bytes from 8.8.8.8: icmp_seq=3 ttl=105 time=26.5 ms --- 8.8.8.8 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2003ms rtt min/avg/max/mdev = 26.519.. 더보기 이전 1 다음
